#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
#include<iostream>
using namespace std;
#include<string>
string StrConnect(string x, string y)
{
	return x + y;
}
int main()
{
	string a, b;
	cin >> a >> b;
	cout << StrConnect(a, b);
	return 0;
}

